These are the DJI Carbon Fiber Quick Release 1345 Propellers (one CW & one CCW). These are black with white stripes. The 1345 quick-release propellers can be used on the Inspire 1 (V1), Matrice 100, or with E800 tuned propulsion systems.Z-BLADE PROPELLERS Aerodynamically optimized blade geometry.Dynamic balance is made possible through high-precision manufacturing and a strict quality control system.Patented quick-release locking mechanism secures propellers in all working maneuvers.